Machine for operating ttpon casting patterns



May 1927' E. E. FOSTER MACHINE FOR OPERATiNG UPON CASTING PATTERNS FiledNov. 22, .1922 2 Sheets-Sheet 1 May 10. 1927.

F. -lg 3 lim i Z I I I f Filllllll Milk E.E.FOSTER MACHINE FOR OPERATINGUPON CASTING PATTERNS Filed Nov. 22, 1922 2 Sheets-Sheet 2 Patented May10, 1927. T I j UNETEQ STATES PATENT OFFICE.

EDWARD E. FOSTER, F BEVERLY, MASSACHUSETTS.

MACHINE FOROPERATING UPON CASTING PATTERNS.

Application filed November 22, 1922. Serial No. 602,602.

The present invention relates to machines In the illustrated embodimentof the infor operating upon casting patterns, and vention a castingpattern 1 (Fig. 1) is more particularly to a machine for operatingmounted on a table 2 carried by the machine upon casting patterns,having marginal column 3; As shown in Figures 1 and 2, the

flanges, which determine the form of the casting pattern comprises .asole-shaped body leaders used in automatic shoe machines. portion 4"provided with a peripheral flange These leaders are now made byproducinga 5. The casting patterns operated upon by sole-shaped blankhaving. the shrinkage of the machine disclosed inmy former Patent castiron and the spring of the last measure- No. 1,284,858, November 12,1918, are of the ments incorporated therein, and then insertsingle facetype, that is, capable only for ing the blank into a machine providedwith use in casting a leader .for aleft or a right automatic mechanismfor winding a strip shoe. For that reason in addition to comof paperaround the edge of the blank to P s ng the a g laterally it W l o 1160-65 form a flange-thereon. After the pattern essary to impart a draft tothe flange in is removed from this machine it is often order tofacilitate the removal of the casting found that the flange issomewhatloose and patt rn from the sand. th t it to and, bottom faces are roughow- The casting patterns shown in position ing to projecting dg s f. thpaper du to for operation in the drawings of the present 70 inequalitiesin the wind. Before the pattern case are of the double faced type, th'atis decan be used to cast the leaders it is desirable slgned to cast aleader which may be used to compress the flange laterally and iron outin an operation on a left shoe and then by bethe roughness on its topand bottom'faces. lng reversed used in an operation on the The object ofthe present invention is to mate or right shoe. As the flanges of theseproduce .a machine for compressing and casting patterns of the doublefaced type. are

ironing the flange. I provided with upper and lower externalbev- To theaccomplishment of this object, and els in the machine disclosed in myPatent such others as may hereafter appear, the No. 1,267,842, May 28,1918, there is no need features of the invention relate to certain ofproviding the pattern with a draft as 80 devices, combinations, andarrangements of the double bevel permits the ready-removal partshereinafter described, and then set of the pattern from the castingsand. It is, forth broadly and in detail in the appended however,necessary to consolidate the flange claims, which possess advantagesreadily apby compressing it laterally and also to iron parent to thoseskilled in the art. the top and bottom faces of the flange to re- 85 Thevarious features of the present invenmove the irregularities of thepaper wind.

tion will be best understood from an inspec- The machine of the drawingis provided tion of the accompanying drawings illustratwith a set ofrolls which embrace the flange ing the best form of invention at presentto consolidate it and iron out the inequalities known to the inventor,in which, at the same time driving the pattern over the 90 Figure 1 is.a plan of a machine for opersurface of the table 2 and swinging itlaterating upon the casting patterns; ally to transfer the point ofoperation of Fig. 2 is a left side elevation, the casting the-rollsaround the sole-shaped curvature of pattern being shown in section; theflange.

Fig- 3 is a sectional elevation on the line The upper face of thepattern and the in- 95 33, Fig. 1, the casting pattern, however,nerupper face of the flange are engaged by being removed; a roll 6mounted to rotate upon a pin 7 Fig. 4 is adetail in front sectionalelevawhich is secured to a head 8. The head 8 tion on the line 4 l, Fig.3; and is carried by a yoked frame 9 having a pair Fig. 5. is a detailin left side sectional eleof legs 10 which are pivotally mounted upon100 vation showing the manner in which the a pair of brackets 11 securedto the table 2. various rolls of the machine are separated Journaled inthe frame 9 is a longitudinal to facilitate the insertion and removal ofshaft 12 the front end of which carries a the casting pattern. disc roll13 arranged to engage the top face of the flange (Fig. 3). The rear endof the shaft 12 carries a gear 14 which meshes with a similar gear 15 ona second horizontal shaft 16. One end of the shaft 16 is journaled in abearing 17 secured to the table 2. The other end of the shaft 16 isjournaled in a slide 18 (Fig. 4) mounted to slide in Ways 19 carried bythe table 2. The shaft 16 carries at one end a disc roll 20 arranged toengage the bottom face of the flange (Fig. 3). The shaft 16 is driventhrough a worm wheel 21 secured to the gear 15 and engaged with .a worm22. The worm is secured to a horizontal shaft 23 journaled beneath thetable 2 and driven from some source of power through the belt pulley 24(Figs. 1 and 2).

The bottom face of the pattern and the lower inside face ofthe flangeare engaged by a roll 25 which is mounted to rotate upon a pin 26carried by a head 27 secured to the ta 1e 2. The outside face of thepattern is engaged by a roll 28 which is carried by a bevel gear 29driven from the shaft 16 through a bevel gear 30 splined to the shaft.

The roll 28 is backed by a heavy spring pressure to effect a lateralcompressing action on the flange held between the roll 28 and itscooperating rolls 6 and 25. To this end ,the shaft 16 carries a spring31 coiled around the shaft and interposed between the worm wheel 21 anda sleeve 32 which is splined on the shaft and which carries the gear 30.The spring 31 also acts through connections to be described to force theroll 6 towards the roll 25.

In order to withdraw the rolls 6 and 28 from the work against thepressure of the spring 31 to facilitate insertion and removal of thework the frame 9 carries a pair of pivoted links 33 to which a handle 34is pivoted (Figs. 3, 4, and 5). The handle 34 is extended as a yokedbell crank lever 35 pivoted at 36 on the column 3. The short arms 37(Fig. 4) of the lever 35 engage a bearing cap 38 carried by the slide 18and interposed between flanges 39 formed on the sleeve 32. With thisconstruction pressure on the handle 34 simultaneously tips the frame 9and slides the sleeve 32 into the positions of Fig. 5. From aninspection of Fig. 3 it will be apparent that the axis about which theframe 9 tips intersects the common pitch line of the gears 14 and 15 ata point thereon farthest from the work so that the rotation of thedriven rolls may not be interrupted during the removal or insertion ofthe work.

The rolls 13 and 20 cooperate to feed the pattern longitudinally overthe table 2 and iron out any inequalities on the top and bottom faces ofthe flange. The rolls 6, 25 and 28 cooperate to compress the flange andswing the pattern laterally to maintain the various curvatures of theflange at the operating point in the line of feed.

What is claimed as new, is

1. A machine for operating upon a casting pattern having a marginalflange, having, in combination, a pair of rolls arranged to engage thetop and bottom faces of the pattern, respectively, a roll arranged toengage the outside face of the flange, and a single means for relativelymoving two of the rolls in two directions.

2. A machine for operating upon a casting pattern having av marginalflange, having, in combination, a pair of rolls arranged to en gage thetop and the bottom faces of the flange, respectively, a roll arranged toengage the outside face of the flange, and a single means for relativelymoving two of the rolls in two directions.

3. A machine for operating upon a casting pattern having a marginalflange, having, in combination, a pair of rolls arranged to engage thetop and bottom faces of the flange, respectively, a roll arranged toengage the outside face of the flange, and positively operatingmechanism for driving the three rolls.

4. A machine for operating upon a casting pattern having a marginalflange, having, in combination, a pair of rolls arranged to engage thetop and bottom faces of the flange, respectively, a roll arranged toengage the outside face of the flange, positively operating mechanismfor driving the three rolls, and means for relatively moving two of therolls in two directions.

5. A machine for operating on a casting pattern having a marginalflange, having, in combination, a roll arranged to engage the top faceof the pattern, a roll arranged to engage the top of the flange, atipping frame for said rolls, a roll arranged-to engage the outside faceof the flange, a roll arranged to engage the bottom of the flange, and asingle means for tipping the frame and relatively moving the last twonamed rolls.

6. A machine for operation on a casting pattern having a marginalflange, having, in combination, a roll arranged to engage the top faceof the pattern, a roll arranged to engage the outside face of theflange, and a spring arranged to hold both rolls in operating position.

7 A machine for operating on a casting pattern having a marginal flange,having,

in combination, a roll arranged to engage the top face of the pattern, aroll arranged to engage the outside face of the flange, a springarranged to hold the rolls in operating position, and means forwithdrawing the rolls from operating position against the pressure ofthe spring.

8. A machine for operating upon a casting pattern having a marginalflange, having, in combination, a. pair of rolls arranged to en gage thetop and bottom faces of the flange, respectively, a shaft for each roll,an intermeshing gear on each shaft, and means for pair of compressingrolls, a tipping frame tipping one of the shafts about an axis infor oneof the feeding rolls, a sliding frame tersecting the common pitch lineof the gears for one of the compressing rolls, and a single 10 at thepoint thereon farthest from the rolls. means for tipping and sliding theframes.

9. A machine for operating upon casting In testimony whereof I havesigned my patterns having a marginal flange, having, name to thisspecification. in combination, a pair of feeding rolls, a EDWARD E.FOSTER,

